L-leucine in food supplements
3,225 supplements declared in France contain L-leucine as a substance or active ingredient.
Declarations also use the name: Leucine. Separate page, as the form (L or D) is not always stated.
Other names in the Compl'Alim list: L-leucine.
Compl'Alim declarations. Compl'Alim, food supplement declarations (France), retrieved 23 October 2026.
What health agencies say
An opinion says what the agency recommends; it is not a rule binding on the product.
The BfR derived, for adults, a guidance value of 4.0 g per day for isolated leucine (alone or with the other branched-chain amino acids) taken in addition to the normal diet. It is based on animal data with uncertainty factors.
What we know about this ingredient
Associated research
ClinicalTrials.gov · A trial is not proof: it tests a hypothesis.
- NCT06580145 : Leucine in Midlife Depression
RECRUITING · PHASE2 · Major Depression · 2026-09-11 · L-leucine
Searched on 1 November 2026.
In plain words
À quoi il sert, selon les fabricants
Objectifs les plus souvent annoncés pour les compléments qui en contiennent (L-leucine) : sport (1612 produits), croissance et developpement (90 produits), système nerveux (64 produits), antioxydant (63 produits), immunité (63 produits).
Ce sont les objectifs déclarés par les fabricants à l'administration, pas des effets démontrés. Sur l'emballage, seules les allégations de santé autorisées par l'Union peuvent être écrites.
Compl'Alim, food supplement declarations (France), retrieved 23 October 2026.
What the registers say, country by country
Each line repeats what an official register says on the date it was consulted. Not being in a register means neither allowed nor banned.
Compl'Alim ingredient list (France): listed.
Compl'Alim, reference list of ingredients, retrieved 21 October 2026.
Canada, licensed natural health products (LNHPD): 1311 products.
Licensed Natural Health Products Database (LNHPD), Health Canada: licensed products, ingredients, doses, uses and risks, retrieved 27 October 2026.
Contains information licensed under the Open Government Licence – Canada (Health Canada, LNHPD)
Licence du gouvernement ouvert – Canada 2.0 (OGL-Canada 2.0)
United States, supplement labels (DSLD; supplements need no prior approval): 2737 products.
Dietary Supplement Label Database (DSLD), US National Institutes of Health: current and off-market labels, retrieved 27 October 2026.
Source: NIH Office of Dietary Supplements, Dietary Supplement Label Database (CC0); US market labels.
Malaysia, registered products: 15 products.
NPRA, Malaysian pharmaceutical products register, retrieved 27 October 2026.
Ministry of Health Malaysia / NPRA, Pharmaceutical Products, CC BY 4.0
Taiwan, registered products: 52 products.
TFDA, Taiwan tablets, capsules and medical nutrition registers, retrieved 27 October 2026.
Taiwan Food and Drug Administration (TFDA), Open Government Data License, version 1.0
United States, supplements listed by the USDA: 36 products.
USDA FoodData Central Branded, supplement cohort, retrieved 29 October 2026.
Source: U.S. Department of Agriculture, Agricultural Research Service, FoodData Central, Branded Foods. Data published under CC0 1.0 Universal, https://creativecommons.org/publicdomain/zero/1.0/.
Products
Other related records
- NAT Strawberry Peach Caffeine Free Supplement from the US market
- NAT Lime Time Charged Supplement from the US market
- NAT Lime Time Caffeine Free Supplement from the US market, dsld-269962
- NAT Raspberry Lemonade Charged Supplement from the US market
- NAT Raspberry Lemonade Caffeine Free Supplement from the US market
- NAT Maui Punch Charged Supplement from the US market
- NAT Maui Punch Caffeine Free Supplement from the US market, dsld-269967
- Rebuild Strength Chocolate Supplement from the US market
- Reward Hi-Leucine Plant Protein Chocolate : étiquette retirée du marché américain Supplement from the US market
- Charged Amino Blue Raz Lemonade Supplement from the US market
- Beet Root Complex Supplement from the US market
- Post Workout Fruit Punch Supplement from the US market
- Time-Released Mega Men Diabetic Support Supplement from the US market
- Amino All Supplement from the US market
- Premium Plant Protein Vanilla Flavored : étiquette retirée du marché américain Supplement from the US market
- Complete-FM Supplement from the US market
- Core Level Ileoduodenal Supplement from the US market
- Core Level Kidney Supplement from the US market
- Core Level Manganese Supplement from the US market
- NAT Swiss Cacao Caffeine Free Supplement from the US market
- Enhanced Electrolytes Black Cherry Supplement from the US market
- Core Level Adrenal 60 Tablets Supplement from the US market
- Core Level Adrenal 120 Tablets : étiquette retirée du marché américain Supplement from the US market
- EVO9INE Juicy Grapefruit Supplement from the US market
- Core Level Prostate Supplement from the US market
- Core Level Thiamine Supplement from the US market
- Hair, Skin & Nails Formula Supplement from the US market
- Core Level Thymus Supplement from the US market
- Dusk Strawberry Orange Supplement from the US market
- Women's 73 Nutrient Soft-Gel Multi Supplement from the US market
- MyoHealth Supplement from the US market
- NAT Splash Caffeine Free Supplement from the US market
- BCAA Blue Raspberry Supplement from the US market, dsld-278227
- NZURI Elixir Supplement from the US market
- Super Trio : étiquette retirée du marché américain Supplement from the US market
- Enhanced Electrolytes Raspberry Guava Supplement from the US market
- Core Level Health Reserve Supplement from the US market
- BCAA for Her Blue Raspberry Supplement from the US market
- BCAA 5000 Supplement from the US market
- BCAA Powder Berry Blast Flavour Supplement from the US market
- BCAAs Supplement from the US market
- BCAA 1000 Caps 1,000 mg Supplement from the US market
- Mega-Size BCAA 1000 Caps Supplement from the US market, dsld-29075
- The #1 Diet Supplement from the US market
- Amino Trim 7000 mg Supplement from the US market
- Complete Hair Growth Supplement from the US market
- HydroBCAA + Essentials Watermelon Supplement from the US market
- BCAAS Fruit Punch Supplement from the US market
- Post-Workout Recovery Chocolate Supplement from the US market
- Post-Workout Recovery Vanilla Supplement from the US market
- Insane Amino Hellboy Lemonade Supplement from the US market
- Xeno Amino Sour Berries Supplement from the US market
- Gorilla Mode Post-Workout Fruit Punch : étiquette retirée du marché américain Supplement from the US market
- Amino K.E.M. Much Punch Supplement from the US market
- PreWAVE Natural Watermelon Blueberry Flavor Supplement from the US market
- Superhuman Intra Leg Day Limeade Sour Lime Popsicle Supplement from the US market
- Better//Broth Keto Thyme Supplement from the US market
- Better//Broth Salted Caramel Supplement from the US market
- NAT Berry Blue Charged Supplement from the US market
- NAT Blueberry Acai Charged Supplement from the US market